Observation 386252: X-CUBESAT (42707)


#1

Regarding Observation 386252 … if you want to decode use 1k2 AFSK modem not 9k6


#2

Indeed with:

sox -t ogg satnogs_386252_2018-12-29T02-54-45.ogg -esigned-integer -b 16 -r 48000 -t raw - | direwolf -B 1200 -b 16 -n 1 -r 48000 -q hd -t 0 -q h -q d -d p -d t -a 0 -

I got:

[0.2] ON01FR>TLM:!01010814@012013;02000002009f02a300ace5029c00029b00ae02b16ba0000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 30 31 33  !01010814@012013
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 66 30 32 61  ;02000002009f02a
  030:  33 30 30 61 63 65 35 30 32 39 63 30 30 30 32 39  300ace5029c00029
  040:  62 30 30 61 65 30 32 62 31 36 62 61 30 30 30 30  b00ae02b16ba0000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

Audio input level is too high.  Reduce so most stations are around 50.
[0.3] ON01FR>TLM:!01010814@012043;02000002009e02a200ace5029b00029b00ae02b1699c000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 30 34 33  !01010814@012043
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 65 30 32 61  ;02000002009e02a
  030:  32 30 30 61 63 65 35 30 32 39 62 30 30 30 32 39  200ace5029b00029
  040:  62 30 30 61 65 30 32 62 31 36 39 39 63 30 30 30  b00ae02b1699c000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

Audio input level is too high.  Reduce so most stations are around 50.
[0.2] ON01FR>TLM:!01010814@012058;02000002009e02a200ace5029b00029b00ae02b16baa000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 30 35 38  !01010814@012058
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 65 30 32 61  ;02000002009e02a
  030:  32 30 30 61 63 65 35 30 32 39 62 30 30 30 32 39  200ace5029b00029
  040:  62 30 30 61 65 30 32 62 31 36 62 61 61 30 30 30  b00ae02b16baa000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

[0.2] ON01FR>TLM:!01010814@012113;02000002009e02a200abe5029b00029b00ae02b069a7000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 31 31 33  !01010814@012113
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 65 30 32 61  ;02000002009e02a
  030:  32 30 30 61 62 65 35 30 32 39 62 30 30 30 32 39  200abe5029b00029
  040:  62 30 30 61 65 30 32 62 30 36 39 61 37 30 30 30  b00ae02b069a7000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

[0.3] ON01FR>TLM:!01010814@012129;02000002009e02a200abe5029b00029a00ae02b06ba8000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 31 32 39  !01010814@012129
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 65 30 32 61  ;02000002009e02a
  030:  32 30 30 61 62 65 35 30 32 39 62 30 30 30 32 39  200abe5029b00029
  040:  61 30 30 61 65 30 32 62 30 36 62 61 38 30 30 30  a00ae02b06ba8000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

[0.3] ON01FR>TLM:!01010814@012144;02000002009e02a200abe5029b00029a00ad02b06ba6000000b6000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 31 34 34  !01010814@012144
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 65 30 32 61  ;02000002009e02a
  030:  32 30 30 61 62 65 35 30 32 39 62 30 30 30 32 39  200abe5029b00029
  040:  61 30 30 61 64 30 32 62 30 36 62 61 36 30 30 30  a00ad02b06ba6000
  050:  30 30 30 62 36 30 30 30 30 30 30 30 30 30 30 30  000b600000000000
  060:  30                                               0
------

Audio input level is too high.  Reduce so most stations are around 50.
[0.3] ON01FR>TLM:!01010814@012159;02000002009d02a200abe5029b00029a00ad02b0699f000000b5000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 31 35 39  !01010814@012159
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 64 30 32 61  ;02000002009d02a
  030:  32 30 30 61 62 65 35 30 32 39 62 30 30 30 32 39  200abe5029b00029
  040:  61 30 30 61 64 30 32 62 30 36 39 39 66 30 30 30  a00ad02b0699f000
  050:  30 30 30 62 35 30 30 30 30 30 30 30 30 30 30 30  000b500000000000
  060:  30                                               0
------

Audio input level is too high.  Reduce so most stations are around 50.
[0.2] ON01FR>TLM:!01010814@012214;02000002009d02a200abe5029b00019a00ad02b06ba7000000b5000000000000
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 97
 dest    TLM     0 c/r=0 res=0 last=0
 source  ON01FR  0 c/r=0 res=0 last=1
  000:  a8 98 9a 40 40 40 00 9e 9c 60 62 8c a4 01 03 f0  ...@@@...`b.....
  010:  21 30 31 30 31 30 38 31 34 40 30 31 32 32 31 34  !01010814@012214
  020:  3b 30 32 30 30 30 30 30 32 30 30 39 64 30 32 61  ;02000002009d02a
  030:  32 30 30 61 62 65 35 30 32 39 62 30 30 30 31 39  200abe5029b00019
  040:  61 30 30 61 64 30 32 62 30 36 62 61 37 30 30 30  a00ad02b06ba7000
  050:  30 30 30 62 35 30 30 30 30 30 30 30 30 30 30 30  000b500000000000
  060:  30                                               0
------

#3

Thanks for the heads up.

For X-Cubesat the GMSK transmitter is chosed by default on the scheduling page and by the auto-scheduler, as this has most ‘good’ observations. This likely is due to users seeing signals and vetting the observation as good, even when the transmitted signals are AFSK. @fredy has disabled the GMSK transmitter for now so we can build up some stats on the AFSK transmitter, hopefully with many decodes.


#4

Just aiming for more and more decodes :wink:

Good work you guys.


#5

Hi all,
Student’s Centre Spatial X-Cubesat ground station in Polytechnique school is asking the satellite radioamateur community to send telemetry reports of X-Cubesat as it is going to decay soon and finish its life by burning into high Earth atmosphere. X-Cubesat team is interested by telemetry frames sent during final livfe phase of the cubesat.
Thanks for sending tlm reports.
73 de Bernard f6bvp@amat.org